Water-heater.



E. ROBSON.

WATER HEATER.

APPLICATION FILED JUNE 13. 1917.

1,265,387., Patent-ed May 7,1918.

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w 22 i kt- 51 amwwto'z EDWFIRD PoBsoN EDWARD ROBSON, OF TRENTON, NEW JERSEY.

WATER-HEATER.

Specification of Letters Patent.

Patented May 7, 1918.

Application filed June 13, 1917. Serial No. 174,584.

To all whom it may concern:

Be it known that I, EDWARD RoBsoN, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Water-Heaters, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to water heaters, and has for its primary object to provide a very simply constructed apparatus particularly designed for use in hospitals, laundries, office buildings, and other places where a copious supply of hot water at all times is desirable.

It is another and more particular object of the invention to provide a water heater having improved means whereby the water is quickly and highly heated by means of exhaust or live steam.

It is a more particular object of the invention to provide a water heater embodying a series of water cylinders arranged in superposed relation and connected for the circulation ofwater therethrough, a hollow steam receiving casting arranged in each of said cylinders, and inlet connections between said castings at one of their ends and a common source ofsteam supply.

It is also a further general object of my invention to provide an apparatus for the above purpose, which is of very simple construction, and wherein any one of the steam receiving castings may be readily removed and replaced in position without disturbing the others.

\Vith the above and other objects in view, my invention consists in the novel features of construction, combination, and arrangement of parts to be hereinafter more fully described, claimed, and illustrated inthe accompanying drawings, in which,

Figure 1 is a vertical longitudinal sectional view of my improved water heater;

Fig. 2 is a section taken on the line 22 of Fig. 1; and

Fig. 3 is an enlarged elevation of one of the hollow steam receiving castings.

Referring in detail to the drawings, 5 designates a series of water receiving cylinders which are arranged in superposed rela tion as shown, each of said cylinders being provided on its opposite ends with a laterally projecting, annular flange 6 to which the head 7 may be detachably bolted in any usual or approved manner. Each cylinder is further provided in spaced relation to each of its ends with a coupling extension 8 which is provided on its end with an annular flange 9. The intermediate cylinder 5 has such extensions formed on its ends at diametrically opposite points. Thus, when the cylinders are arranged in superposed relation, the flanges 9 of one cylinder may be securely bolted to the opposed flanges on the adjacent cylinder, whereby the series of cylinders are connected to each other. One of the nipples 8 on one end of each cylinder is plugged or closed in any suitable manner, while the other nipple remains open to afford communication between the several cylinders, as clearly indicated by the arrows in Fig. 2. lhe lower cylinder 5 is provided with an inlet port 10, to which a water supply pipe is adapted to be connected, and the uppermost cylinder is provided in its top with an outlet opening 11 to which the water conducting pipe may be connected to conduct the heated water for discharge at any desired point. The lower cylinder 5 is also provided with an additional opening 10 through which the mud or sediment collecting therein may be removed.

In each of the cylinders, a hollow metal casting 12 is adapted to be arranged, said casting being formed with the spaced circular chambers 13 connected by a central, longitudinally extending, tubular portion 14. The lower sides of the chambers 13 are also integrally connected, such connection having a longitudinal bore or passage indicated at 15, affording communication between the several chambers. One end of this bore is closed by athreaded plug 16, and a drain pipe 17 is connected to the other end thereof and extends out through a suitable stuffing box 18 on one of the heads 7. The several drain pipes are connected to a common pipe 19 which discharges the waters of condensation to a trap or any other convenient place. One of the end chambers 13 of the casting 12 also has a central opening closed by a threaded plug 20, and by the provision of such opening, the interior of the hollow casting can be more efi'ectively cleaned. The chamber 13 at the opposite end of the casting is centrally formed with an interiorly threaded boss 21 to receive a short threaded nipple 21 which is adapted for engagement in the central threaded opening formed in the head plate 7. A pipe 22 is connected at one of its ends to the threaded opening of the cylinder head 7, and its outer end is connected to the pipe 23 leading from a suit able source of steam supply, said supply pipe being common to the several steam receiving drums or castings 12.

From the foregoing description, taken in connection with the accompanying drawings, the construction, manner of operation, and several advantages of my invention will be clearly and fully understood. Assuming that the several castings 12are supplied with exhaust or live steam from the pipe 28, the water which is admitted to the lower cylinder 5 circulates through the several cylinders and around and between the circular chambers 15 of each of the steam receiving castings, so that the water in its upward course through the several cylinders to the outlet opening 11 may become heated to a very high degree. In this manner, a copious supply of hot water is always at hand without necessitating additional fuel consumption so that my invention is particularly desirable for use in hospitals and similar institutions. The number of cylinders 5 may, of course, be greatly multiplied if desired, and as the steam condenses in'the several hollow castings 12, it is continually'drawn off through the pipes 17 and 19. When necessary, any one of the castings 12 can be re moved for the purpose of cleaning the same without entirely stopping the operation of the apparatus, by simply removing the head 7 of one cylinder, and after removing the casting, securely plugging the openings for the pipes 17 and 22. Suitable packing will, of course, be provided between the vpipes 17 and 22 and the cylinder heads, and also at the connection of said pipes to the drum 12 to thereby prevent the leakage of steam or water. The construction of my improved water heater is, as a whole, very simple so that it can be manufactured at relatively small cost. The form of theseveral water chambers, as well as the steam receiving castings, mayof course be varied as desired,.and .the form, proportion, and arrangement of the several elements above referred to can also be modified in many respects. It is, therefore, to be understood that while I have herein disclosed one preferable embodiment of my device, I nevertheless reserve the privilege of resorting to all such legitimatechanges as may be fairly embodied within the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is:

1. In a water heater, a cylinder having a water inlet and outlet, a hollow casting elisposed Within Said chamber and extending substantially the entire length thereof, said casting consisting of a series of spaced, integrally connected communicating chamhers, steam supply means connected to one of the end chambers of the casting, an additional integral connection between the lower portions of said base chambers having a longitudinal bore to receive the waters of, condensation,and a drain pipe connected to one end of said bore.

2. In a water heater, a cylinder having water inlet and outlet openings, a hollow metal casting arranged within said :cylinder, .a steam supply pipe extending through one end of the cylinder and connect,- ed to said hollow casting to supply steam thereto, and a drain pipe connected to, the opposite end of the casting and extending through the other end ofthe cylinder.

3. 111 a water heater, a plurality of cylinders arranged in superposed relation and alternately communicating with each other at their opposite ends, a hollow casting arranged in each of said cylinders, each casting consisting of a plurality of spaced, integrally connected communicating chambers, one of the end chambers having acleanout opening, aclosuretherefor, a steam supply pipeconnected to the other end chamber of the casting, and a drainage pipe for the waters of condensation in communication E'DWVAR'D ROBS'ON Witnesses:

WM. MOORE, CHAS. C. 'SoHMn).

Copies of this patent may be obtained for five cents each, by addressing the Commissioner vof Patents.

Washington, -D. Q. 

